.header-box input {
    width: 480px;
    height: 32px;
    padding: 0 8px;
    border-radius: 4px;
    outline: none;
    font-size: 14px;
    border: 1px solid #ccc;
    box-sizing: border-box
}
.header-box input:focus {
    border: 1px solid #2e72bd;
}